3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php $strings = array( 'this is a string', 'this is $ a string', 'this is 12 string', 'this is $12.99 string', ); foreach ($strings as $string) { var_dump(strtolower(preg_replace('#[^a-z0-9]#', '', preg_replace('#[_+]#', '-', $string)))); }
Output for 4.3.0 - 5.6.28, hhvm-3.10.0 - 3.12.0, 7.0.0 - 7.1.0
string(13) "thisisastring" string(13) "thisisastring" string(14) "thisis12string" string(16) "thisis1299string"